1161359527943 has 2 divisors, whose sum is σ = 1161359527944. Its totient is φ = 1161359527942.

The previous prime is 1161359527931. The next prime is 1161359527957. The reversal of 1161359527943 is 3497259531611.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3497259531611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161359527943 - 2¹⁶ = 1161359462407 is a prime.

It is a super-2 number, since 2×1161359527943² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161352527943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580679763971 + 580679763972.

It is an arithmetic number, because the mean of its divisors is an integer number (580679763972).

Almost surely, 2^{1161359527943} is an apocalyptic number.

1161359527943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161359527943 is an equidigital number, since it uses as much as digits as its factorization.

1161359527943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6123600, while the sum is 56.

The spelling of 1161359527943 in words is "one trillion, one hundred sixty-one billion, three hundred fifty-nine million, five hundred twenty-seven thousand, nine hundred forty-three".